IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is a two-foot, two-fold boxwood ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The scales on this 22-inch, two-sided ...

It was the only technological tool widely and continuously used for over three centuries. For math and science geeks it was a badge of honor, nestled neatly into a plastic pocket protector along with ...

Ever wanted to know how engineers made their calculations before digital calculators were on every workbench? [Richard ...

There was a time not that long ago when every type of engineer had a slide rule. But the advent of semiconductor technology and the creation of handheld computers made the slide rule obsolete. Or did ...

While some (math-phobics) still may relish the simple beauty and non-threatening functionality of the abacus, there are those who have made the transition to more challenging computing gadgets—many ...

Used by engineers for centuries, they were displaced by pocket calculators and all but forgotten until Mr. Shawlee created a subculture of obsessives and cornered the market. By Alex Traub For about ...

The slide rule, sometimes called a slipstick, was a type of mechanical analog computer. It was and still is, used primarily for multiplication and division, and also for functions such as roots, ...

In our most recent 5 Engineers post — part of this blog and our Fun Friday newsletter, where we toss out a question and invite our audience to respond with their wittiest answers — we asked: What’s ...

Who could imagine that the slide rule, once ubiquitous in high school mathematics classes, would be used to figure the odds at horse races or to calculate the alcohol content of a barrel of beer? But ...